Refrigerator



C. A. CREAPO.

REFRIGERATOR.

APPLICATION F1LED MAR.2|,1919.

Patmte 001s. 5, 1.920.,

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FIG. .5.

PATENT OFFICE.

CHARLES A. CREAPO, OF ST. PAUL, MINNESOTA.

REFRIGERATOR.

Specification of Letters Patent.

Patented Oct. 5, 1920.

Application led March 21, 1919. Serial No. 284,145.

To all lwhom t 'may concern.'

Be it known that I, CHARLES A. CREAro a citizen of the United States,residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented a new and useful Refrigerator, of which the following is aspecification.

My invention relates to refrigerators, and the object is to provide arefrigerator in which no ice or ammonia is required to produce the chillrequired in domestic and other ordinary refrigerators.

In the accompanying drawing, Figure 1 is a top view of my improvedrefrigerator. Fig. 2 is a front elevation of Fig. 1. Fig. 3 is anenlarged section on the line 3 3 in Fig. 2. Fig. 4 is a vertical sectionof the refrigerator on the line 4-4 in Fig. 3. Fig. 5 is a verticalsection on the line 5--5 in Fig. 3.

Referring to the drawing by reference numerals and showing the inventionas embodied in a small refrigerator or ice-box used in or near thefamily ln'tchen for keeping milk, meats, butter and other groceries coldduring the warm season of the year, 6 designates a casing having eitherlegs or a downward rim 7 forming a hollow base 8, in which is disposedthe usual dripping pan 9, having a tube 10 for leading water into thesewer piping of the building.

The top 11, bottom 12, back 13, sides 14 and front 15, the latter withdoor 16, are all formed with double air spaces 17, 18, which areseparated by a thick paper or cardboard partition 19, secured on strips20, which have air holes 20x and are secured to either the inner shell22 or the outer shell 21. Said shells are preferably made out of thinsheet metal and are lined at their adjacent sides with thick paper 23.The door 16 is hinged at 24 and provided with suitable locking means 25.

Placed within the casing 6 is a slightly smaller skeleton frame having afront opening 26 (shown in dotted line in Fig. 3) facing the opening forthe door 16. Said skeleton frame is formed of flat tubes 27,communicating with vertical corner tubes 28. One of said corner tubeshas its upper end 'connected to a water su ply 29 of the water workssystem in the building in which the refrigerator is placed, and thecorner post diagonally therefrom has its lower end provided with a wateroutlet pipe 30, provided with a drip valve 31 outside the boX 6 so itcan be seen and regulated; it is arranged to drip water into a chute orpipe 32, which extends into the base 8 and leads into the dripping pan9.

In Fig. 4 is indicated how by means of hooks 33 shelves, like 34, may besuspended from the horizontal tubes 27 in the sides of the refrigerator.It is also evident that shelves may be supported on said tubes withoutthe use of the hooks 33, by simply making the shelves long enough toextend with their ends partly upon the tubes.

In the operation or use of the refrigerator a valve 35 (shown in Fig. 2)is opened until the whole tubular structure 27-28 is filled with coldwater, the valve is then turned almost shut, so that only a dripping orslight flowing will take place from the valve 31. The latter valve willalso aid in regulating the flow of the water according to requirement,as the atmospheric temperature may vary. In all towns and cities havinga regular water works the same is placed so deep in the ground that thewater gets cold enough to keep the temperature in the refrigerator amplycold to prevent spoiling of groceries and other things placed therein.

In houses' or hotels where a hot water system is maintained forsupplying hot water to bath rooms and faucets in general, one of mydevices may be installed and connected with the hot water pipes, andused for keeping cooked food warm until it is to be placed on the table.The inner frame will in that event serve as a heat radiator, while inthe refrigerator it serves as an absorber of the heat in therefrigerating space.

The air spaces 17, 18, and lining 23 and the intermediate wall orpartition 19 all help to prevent the cold air from absorbing heatthrough the walls, top or bottom of the inclosure 6.

As for the cost of operation, actual demonstration proves that inordinary cities and towns where water from the waterworks can be had atthe rate of one-fourth to one-sixth of a cent per barrel, and ice costsabout half a cent per pound, it is a great saving of money to use myimproved refrifrerator instead of the kind cooled With ice.

hat I claim is Y Y Y A refrigerator comprising a easing, a

5 skeleton frame Within said casing composed of horizontally extendingflattened tubes having their major diameters arranged in verticalplanes, and Communicating with 5 vertical corner tubes, Said frame beingprovided with a fluid supply inlet and a liuid 10 outlet having means`for regulating the flow of the fluid through the frame.

In testimony whereof I affix my signature.

CHARLES A.. CREAPO.

